What can used for lightening protection on 2 meters at the kilowatt power level? The Polyphasers I know of top out at 350 watts. _______________________________________________ ______________________
I use a 3/4" copper pipe and hose clamp my copper straps to it. That gives plenty of surface area for a low impedance ground. _______________________________________________ _________________________
It's 72 ohm twin lead. Also known as zip line. --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of William Hein Sent: Monday, March 24, 2014 2:28 PM To: towert
You have to either tram up a beam using a gin pole or you could buy a hazer. Is it common to work above the top guys, after installation? Im not sure Id want to handle a heavy beam or do tramming abo
Get a piece of foam strip at Lowes in the window insulation and weather sealing section. Shove it between the panels. Sent from my iPhone _______________________________________________ _____________
Layover tower and keep Yagi level.. ANTENNA BOOM HINGING SYSTEM (ABHS) http://home.windstream.net/adye/webpages/ABHS01.html W1TR Hanging Hinge Plate Boom to Mast Mount http://www.glagowski.org/Radio/
I have a phased set of four 2 meter Yagi's that I tuned using the gamma matches on the antennas the best I could. Now that the antennas are 90 feet in the air I have a slight SWR problem at the input
I found the problem. Torn cable into coax. Must've snagged. Thanks guys. Odd that damage only showed as a 2.0:1 mismatch! Sent from my iPhone _______________________________________________ _________
pressure from water hose to drive ground rods instead of pounding them into the ground. How exactly does one set things up to do that? _______________________________________________ _______________
You don't want a resonant antenna. You want one that presents a 50 ohm non reactive load to the feed line if that's what the feed line is. Otherwise you use a matching network. Right? Sent from my iP
Why even need one bolt? Just during assembly? Once the tower is guyed the downward weight holds it together. When is there an upward force to seperate the sections? Sent from my iPhone ______________
Consider Using the 4" drain pipe that has the holes all along it instead. It's fairly inexpensive like $10 for 10 feet stick. It's easier to pull coax through the larger width too plus moisture can g
I recently put up a phased set of four 2m meter antenna for EME to find out that the front end of my IC-9100 is being blasted by pager intermod. I got a notch filter for the frequencies involved from
The notch will only be in the receive path since the setup has a mast mounted rx/tx relay too that protects the LNA. Drax The right answer will depend on your individual circumstances. However, it's
I have a friend who is looking for a used tri-band yagi. Within a reasonable distance of Charlotte, NC. Any one have one? _______________________________________________ _____________________________
What is the conductance per inch of concrete in mho's ? _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
623-5943003801. Sent from my iPhone _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contes
The stepper has fixed element spacing and more complexity and gears and motors to go wrong. My Mosley pro96 lasts forever and there's no mechanicals. It and the steppir too is not ideal in all situat
Put in a barrel connector in place of the polyphaser and see. Sent from my iPhone _______________________________________________ _______________________________________________ TowerTalk mailing lis
I've had my tower up for years with $12 ones from the tractor supply. I'm no engineer but they seem fine embedded in concrete. I can't imagine the Rohn ones wouldn't hold up to much much more. ______